Warning-signal



E. RUBES. WARNING SIGNAL- APPLICATION FILED ocr. 3. 191a. RENEWED MAR.22. 1920.

Patented June 29, 1920.

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@Zfizeaaes r UNITED STATESPATEVNT OFFICE.

ERNEST mums. or BROOKLYN, NEW YORK.

WARNING-SIGNAL.

Application filed October 3, 1916, Serial No. 123,522. Renewed March 22,1920. Serial No. 867,887.

To all whom it may concern.-

Be it known that I, ERNEST Burns, a citizen of the United States,residing at Brooklyn, in the county offKings and State of New York, haveinvented new and useful Improvements in Warning-Signals, of which thefollowing is a specification.

This invention relates to warning signals for automobiles, motorcyclesand other vehicles, and theprimary object of the same is to provide amechanical horn or signal in which alarm notes are generated bycontinuous displacement of the resonant. diaphragm through the medium ofdirectly applied manual-power to set up a rapid rotation of a momentumwheel or actuator hav- I of this'shaft being provided with bearing ingdevices to engagea portion of the'diaphragm through the mediumofmechanism of a particular construction.

The invention consists in the construction and arrangement of theseveral parts which will be more fully hereinafter described andclaimed. i

In the drawing:

Figure 1 is a partial longitudinal vertical section of a'warning signalembodying the 7 features of the invention.

Fig. 2 is an enlarged horizontal section of the working mechanism of thesignal and part of the inclosing casing, together with a portion of thediaphragm. 1

Fig. 3 is an enlarged transverse vertical siection taken in the planeofthe line 3-3,

Fig 4: is a detail side elevation of the momentum wheel or actuatorlooking at the side thereof opposite that shown by Fig. 1.

The numeral 5 designates a mechanism inclosing casing which may be ofanysuitable dimensions, 6 a resonator or sound carrying horn secured tothe casing, and 7 a resonant diaphragm having a projection 8. 'Thediaphragm 7 is secured in fixed position between coacting flanges 9 and10 respectively formed as a part of or secured to the casing 5 andresonator 6.

Within the casing 5 the working mechanism is mounted and comprises ashaft 11 having at one extremlty an elongated p1n1on 12 rotatabletherewith, the two extremities points or cones 13 engaging the innerends of correspondingly recessed adjusting screws or threaded centers 14which extend through opposite sides of the casing and are engaged by setnuts 15 to hold them in their adj usteda' positions. Loosely mounted onthe shaft 11 Specification of Letters Patent. Patented J une 29 1920,

is a revolving diaphragm actuator 16 which is in the form of a momentumdisk or wheel and providedwith a plurality of peripheral teeth 17preferably at one side of the center thereof, thls diaphragm actuatorbeing arranged closely to the inner terminal of'the pinion 12. A ratchetwheel 18 is secured to the shaft 11 close to the side of the actuator 16opposite that which i's'adja cent to the pinion 12. ready rotation onthe shaftll between the pinion 12 and theratchet wheel 18, and on theside of the actuator or momentum disk or wheel 16 is a pawl 19 having aspring 20 engaging the same and holding it in continual biting relationto the ratchet wheel 18, this pawl or d0g19 constituting a oneway clutchconnection between the shaft 11 and the said actuator ormomentum wheel16. It will be understood that the pawl or dog l9 positively engages theteeth of the ratchet wheel 18- when the actuator or momentum wheel '16is operated to vibrate the diaphragm 7 by depression of the manuallycontrolled operating means which will be presently described, but saidpawl or dog prevents reverse rotation of the said actuator or momentumwheel. The pawl or dog 19 connects the momentum wheel 'or actuator 16tothe shaft 11 throughthe medium .of the said ratchet wheel and wherebya rotative impulse is given to the momentum wheel or actuator to causethe teeth 17 thereof to engage the projection 8 ofthe diaphragm 7 Withinthe casing and extending across the latter, in a vertical direction asshown in the drawings, is a guide sleeve 21 having.

a slot 22 in its front side adjacent to the pinion 12-, this slot beingincreased in lateral The actuator 16 is confined for dimensions, as at23, adjacent to the said pinion. The upper portion of the casing 5' hasan opening 23 formed therein and the lower casing has a similaropening24 over laterally projecting flanges 26,, vas clearly shown byFig.3. Reciprocatinglymounted in the guide sleeve 21 is a rack bar 27which constitutes the primal o crating means for the signal, the teeth28 0 this rack bar being which is secured a depending cap 25, the Ifreely reciprocable in the upper opening 23 7 and normally projectsabove the top portion of'thecasing 5. The upper part of the rack 'barwhich pro ects above the casing is smooth and preferably rectangular orsquare in cross-section, and on'the upper end thereof is a pressure heador knob 29 for engagement by the hand of the operator in exertingadownward pressure on the rack bar 27 to actuate the shaft 11 throughthe pinion 12. A coiled spring 30' surrounds the outer portion of thepinion 12 and a part of the adjacent center bearing and has one terminal31 secured to the casing 5, as shown by Figs 2 and- 3, and the oppositeterminal 32 fastened to the intermediate portion of'.the said pinion.'The coilsof this spring contract and relax relatively to the pinion andadajcent bearing center Maccording to the direction of movement oftherack bar 27 The'teeth 17 ofthe actuator or momentum wheel. 16 arealways held in engagement with the projection 8 of'the diaphragm 7, anda downward pressure on the rack bar 27 sets up a rotation of theshaft 11through the medium of the pinion 12 and the said actuator 16 is rotatedby the engagement of the pawl or dog 19 with the ratchet wheel 18. Arapid reciprocation ofthe rack'bar 27 will result in a correspondinglyrapid rotation of the actuator 16, the'latter acquiring sufiicientmomentum to cause it to run some time'after positive actuation thereofthrough the operation of the device's just explained and thereby producea rather prolonged warning signal or sound. When the rackbar 27 isrelieved of downward pressure it is returned to normal position by thespring 30 and this springalso rotates the shaft. 11 and pinion 12 in adirection reverse to that imparted thereto bythe depres- [sion of thesaid rack bar, and as the rack lbar is always in mesh with the pinion itwill be accurately elevated or returned to normal position by the saidspring, which is coiled and tightened by the downward 1 movement of therack bar, the springcoils contracting around the portions ;of the pinionand center bearing .engaged thereby. This upward movement of the rackbar .to

, its normalposition does not interfere'with the'operation of theactuator 16, or the latter is not reta'rdedin its rotation in View ofthe 'factthat the pawl or dog 19 is free to slip over the teeth of theratchet wheel "The shaft 11 may be sleeve 21 toothed diaphragm actuatormounted loosely. rotate on the shaft, a reciprocatory when the shaft andpinion are reversed in their operation by the spring 30 when pressure isrelieved from the rack bar.

found necessary through the medium ofthe screw centers explained, and bythe userof the sleeve 21 the rack bar 27 is always held in positive andreliable operating relation to the pinion 12 and will not pull away fromor have only a partial engagement 'relatively to the said pinion. Theimproved signal may be instantly operated to produce a warning sound bythe slightest depression of the rack bar' 27, with material advantagesin this type of warning signals. The

several parts of the improved warning. sig-' nal are comparativelysimple in construction and may be readily associated to produce a strongand durable signal device.

'What is claimed is: v

1. A warning signal of the class specified comprising a casing, aresonant diaphragm held in the casing, a shaft extending across theinterior of the casing in rear. 0 diaphragm and pinion as a part of thestructure thereof, said pinion extending from about the center of theshaft outwardly to one end, a to rack bar solid from end to end andmounted embodying an elongatedadjusted at any time i f the 7 in a guidesleeve, the rack bar being'held'in I continual engagement, withthefpinion, for

rotating the latter ma" direction to impart a rotation to the actuatorto vibratethe diaphragm, the pinion vby a reverse, movement being thesole means in direct engagement with the rack bar for restoringthelatter to normal position, a ratchetwheel fixed to the shaft at adistaneefrom the "innerend of the pinion, a pawlsecured to the actuatorand continually held in engagement with'the ratchet wheel, and a. springloosely coiled around the outer extremity of the pinion and having oneendsecuredto the pinion and the opposite end to an adj acent'portion ofthe casing ata distance from the'pinion to impart a reverse rotation 'tothe pinion.

and shaft subsequent to actuation of the shaft for vibrating thediaphragm, [the spring coiling upon the pinion when the rack bar isdepressed.

'2. In a warning signal, the combination of a casinghaving adiaphragm'mounted therein, a shaft rotatably disposed i'nthe casing andhaving integral operating means, a weighted diaphragm actuatormounted'to 'loosely'rotate on the shaft, means provided between theactuator and the shaft for connecting said actuator at intervals to theshaft, a reciprocatingrack bar engaging the said shaft operating means,and a spring loosely coiled around a part "of the shaft and having one.end secured to the latter and the opposite end to anadjacent'portionofpthe 18(1 casing to impart a reverse rotation to the.my hand in presence of two subscribing witshaft subsequent to actuationof the shaft nesses. for vibrating the diaphragm, the spring'beingcoiled upon the part of the shaft en- ERNEST RUBES" 5 gaged thereby Whenthe rack bar is de- Witnesse v pressed. v CHAS. 'S; REILLY, In testlmonywhereof I have hereunto set W. H. MASON.

